| Option Category | # # OSD ACCELERATED VIDEO OPTIONS # |
| Description | This option tells MAME to scale up the systems screen output before it is drawn. This can reduce blurriness, as the output on your monitor doesn't need to be scaled up as much. The number after the command is the scaling factor applied to the systems screen before drawing. |
| Full Command | -prescale <integer> |
| Alt. Command | none |
| Reverse Command | none |
| Example | mame64 pacman -prescale 2 |
| mame.ini Command | prescale |
| Command Default | 1 |
| Argument Format | <integer> |